Wideband multiplexing antenna feed employing cavity backed wing

Details Wideband multiplexing antenna feed employing cavity backed wing Wideband multiplexing antenna feed employing cavity backed wing

1975-10-08

1977-08-16

Lieberman, Eli

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343797, 343816, 343840, H01Q 916, H01Q 2126

Patent

active

040429350

ABSTRACT:
An antenna feed system having a very wide (multi-octave) bandwidth. The antenna feed comprises a plurality of nested annular cavities each parasitically excited by a pair of orthogonal two-point fed dipoles. The frequency selective properties of the dipoles and the annular cavities in conjunction with the focal distribution of the reflector or lens with which the feed is used results in a multiplexing of sub-bands across the total bandwidth. A modification of the end members of the two-point fed dipoles permits dual-plane and dual polarization monopulse operation of the feed system.

REFERENCES:
patent: 3358288 (1967-12-01), Dubost et al.
patent: 3555554 (1971-01-01), Kuo
patent: 3665481 (1972-05-01), Woo
patent: 3713167 (1973-01-01), David
patent: 3820117 (1974-06-01), Hall et al.
patent: 3864687 (1975-02-01), Walters et al.

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